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Crash Mapping

The identification of potentially hazardous public roadways is conceptually similar to the identification of hazardous products sold to consumers. Accurate, small-scale geocoding and mapping of accident locations linked to wide-spread public use of the Internet offers a promising tool to pinpoint "accident black spots." Unfortunately, the data required to do this are not widely available to the public and have sometimes been kept secret.

Global positioning system (GPS) data for fatal crashes in the United States were made publicly available pursuant to a Freedom of Information Act request and appeal by Quality Control Systems Corp. to the National Highway Traffic Safety Administration (NHTSA) in 2007.

To illustrate the utility of these data for injury surveillance, we have identified unusual clusters or groups of fatal crashes that invite closer investigation in: